Bobbin stripper



1934- E. A. TERRELL 1,968,803

BOBBIN STRIPPER Filed Aug. 21, 1931 5 Sheets-Sheet 1 July 31, 1934. E. A. TERRELL 1,963,803

BOBBIN STRIPPER Filec} Aug. 21, 1931 5 Sheets-Sheet 2 E. A. TERRELL BOBBIN STRIPPER July 31, 1934.

E. A. TERRELL ,BOBBIN STRIPPER July 31, 1934.

Filed Aug, 21, 1951 5 Sheets-Sheet 4 y 1934- E. A. TERRELL 1,968,803

BOBBIN STRIPPER Filed Aug. 21, 1931 5 Sheets-Sheet 5 zi g njg g n H I I 12 1a 12 V l d l 8 WQUM Patented July 31, 1934 PATENT orrice BOBBIN STRIPPER Edgar A. Terreil, Charlotte, N. 0., assignor to The Terrell Machine Company, Charlotte, N. 0., a corporation of North Carolina Application August 21,

23 Claims.

The invention relates to improvements in bobbin-strippers of the general types disclosed in my Patents Nos. 1,740,127 and 1,740,128, dated December 17, 1929, and especially to new an-dimproved bobbin-guiding means and head-guards;

and bobbin tip-supports, associated or cooperating withthe bobbin feed chutes and other parts of such machines.

A principal feature of novelty and advantage consists in a head engaging and positioning or guiding member which locates the head and the bobbin asa whole in lengthwise relation tothe stripping blades, adapted to maintain its positioning control of the bobbin until the stripping blades close, and thereafter to be moved in the advance of the bobbin in the stripping action,

to permit passage of the head Without affecting a main headeguard which directs the heads as they move downward in the feed chute toward initial stripping position.

The main head guard is so arranged, or tenninates at such a point, adjacent the stripping means, that itis not engaged by a properly positioned bobbin advanced in a normal stripping action, and this guardmay therefore be in fixed relation to the feed chute; or it may be mov ably mounted, so that it will yield upon engagement by the head of a misplaced bobbin, thus avoiding derangement or breakage of the machine or injury to the bobbin. The head-post tioning or guiding member is arranged substantially as an extension of the main guard, to direct bobbins therefrom to stripping position, in whichthe tip of the positioning member confronts the bobbin head, and properly locates the 4 bobbin in relation to the stripping blades.

Another feature of the invention is novel means associated with the chute structure, or inner bobbinbarrel guides therein, to guide and support the tip-end of the bobbin yieldably and with capacity for easy displacement, just above its initial stripping position.-

The characteristics and advantages of the invention are further sufficiently explained in connection with the following detail description of the accompanying drawings, which show preferred embodiments. After considering these examples, skilled persons will understand that many variations may be made without departing from the principles disclosed; and I contemplate employment of any structuresthat are properly within the scope of the appended claims.

Fig. 1 is a side elevation of the feed chute and adjacent parts of a bobbin-stripper of the type disclosed in thecited patents.

1921, Serial No. 558,530 (o1. 2s-2-o) Fig. 2 is an elevation of Fig. 1, viewed from the right.

Fig. 3 is a side elevation, with parts broken away, of another chute structure, showing especially modifications of the bobbin-head positioning and tip-supporting means.

' Fig. 4 is asection at 4-4, Fig. 3.

Fig. 5 is a section in the vertical longitudinal center-plane of a feed chute similar to that'oi' Figs. 1 and 2, showing particularly a novel and improved tip-support.

Fig. 6 is a section at 66, Fig. 5.

Fig. ,7 is a detail showing the arrangement for adjusting the supporting bracket for the hinged bobbin-head guard and guide.

Fig. 8 is aplan view of the stripping blade a. semblies, showing the adjustable positioning means which engage the bobbiinbarrel and ad jacent face of the head.

Fig. 9 is a side'elevation of an alternative form of adjustabletip-support.

Fig. 10 is a vertical section on line 1610 of Fig. 9.

In bobbin-stripping machines of the types disclosed in the cited patents and as here shown, a bobbin-receiving hopper and guide-chute structure is mounted on longitudinal frame-members 1. 4 This chute structure comprises upright sidemembers or castings 2 having arcuate edges and secured on the side frame members with capacity for adjustment of their spaced relation and position lengthwise of the frame. Inner or lining plates 3 are secured to inner faces of the castings, and bobbin-head guide-strips or rails 4 are secured to inner faces of these plates at the upper margins thereof, the two rails forming an arcuate guide-way on which the inward rings of the bobbin-head,or the shoulders of a bobbin not having rings, slide to the discharge ends 5 of the rails. V Stripping blade and bobbin supporting and locating assemblies 6 are secured, one to each of the side frame members, substantially below the lower ends of the guide-rails. Each of these assemblies includes a base or guide-block 7 in which one or more pairs of stripper blades, 8 and 9, are mounted for reciprocation and are retained in the guide-block by a cover-plate 10 which, as fully disclosed in my companion application, Ser. No. 563,137, filed on the 16th day of September 1931, and as suiiiciently shown in Fig. 8 herein, is preferably adjustably mounted on the guide-block and has a depending flange 11 located between the side walls of the block, to space and guide the blades in their working relation. These flanges, or as shown in the cited patents,

flanges formed as parts of the guide-blocks, have their inward ends 11 shaped to cooperate with the barrel of a bobbin at initial stripping position or with the fillet connecting the barrel with the head, to position the bobbin laterally and longitudinally in proper relation to the stripping blades. The guide-blocks also have at their sides adjacent the narrow stripping blades 8, inwardly projecting members 12 with beveled upper corner faces 13, providing a support for the bobbinhead or the rings thereon.

In the type of machine disclosed in Patent No. 1,7e0,127, the bobbin is advanced from the initial stripping position for the entire stripping action by pulling grippers engaging with the head; in the other type, as shown in Patent No. 1,740,128, and as also shown in Figs. 1, 3, and 5 herein, the bobbin is first advanced by a push-head 14 slidably mounted on the frame side-members, and this movement is then completed by pulling grippers which engage with the bobbin head.

In each machine the feed chute has an arcuate head-guard in the form of a flat strip overlying with substantial clearance the heads of the bobbins while descending along the head guide-rails, 4, this strip extending down to a point abreast of the lower ends of the guide-rails. As shown in Patent No. 1,740,127, this guard strip terminates at such a point that it does not overlap or engage with the bobbin-heads when in initial stripping position or as they are advanced therefrom in the stripping action, and the guard, although adjustable, is, in operation, in fixed position in relation to the chute structure. Further reference will be made to this type or arrangementof guard in describing the present improvements as adapted to or incorporated in a machine of that type,

In the type of machine shown in Patent No. 1,740,128, the head-guard structure and arrangement are substantially the same as here shown in Figs. 1 and 2, so far as the main head-guard is concerned; As illustrated herein, this ,main guard consists of an arcuately curved metal strip 15, pivotally mounted at 1"! on a bracket 18. connected to one of the side-castings 2. This guard strip extends curvedly downward and its lower end 19 islocated horizontally opposite the lower ends 5 of the guide-rails 4. As shown in the stated patent the lower end of the main guard is similarly located, but the guard strip is provided with another member or extension piece having at its lower end an inbent finger projecting below the level of the lower ends of th guide-rails, so as to overlap an upper segment of the outer face of a bobbin-head in initial stripping position, and

locate the bobbin in relation to the stripping blades in cooperation with the locating means of the stripper blade assemblies above'referred to.

. The main guard strip in the Patent No. 1,740,128,

and as also here shown, is urged inward or toward the guide-rails 4 by a spring 20 stretched between a bracket 21 connected to the guard, and another bracket 22 secured to the side casting 2, the inward movement of the guard being limited by a set-screw 23 passing through a lug 24 on a bracket arm 25 secured to the guard 15 and engaging against a face or shoulder of a stopbracket 26 secured to the side casting 2, and which overlaps and guides the bracket arm 25. In the patented machine, therefore, in every stripping action, the guard is displaced outward- 1y by action of the bobbin-head on its inbent end or finger above referred to, the guard returning to normal position after the head passes the finger. This outward movement of the guard increases the space between it and the head guiderails 4; or as otherwise stated, the clearance between the guard and the bobbin-heads located in the chute is unduly increased, whereby the heads may become relatively displaced, or overlapped, which interferes with proper feeding action and accurate movement intoinitial stripping position.

To avoid this outward movement of the guard in each stripping action, and the limitations incident thereto, in accordance with the invention,

- as above stated, the lower end 19 of the guard 15 is located at such a point that it is not engaged by the bobbin-head as it advances in the stripping action; instead, it terminates well above and out of range of the head of a bobbin B properly positioned for stripping, and has no extension piece, and hence is not disturbed or moved during a normal stripping action, but holds the rest of the bobbins securely in place.

To engage the bobbin-head at initial stripping position and properly locate it in relation to the stripper blades, now that the main guard 15 has been relieved of this duty, the invention provides additional novel means cooperating or associated with such main guard and other parts of the machine as above described. Such means may vary substantially in details of structure and arrangement as will appear. In the form shown in Figs. 1 and 2, I provide a bobbin-head locating or positioning member in the nature of an arcuate fiat metal strip 30, which for the purposes of brevity in the claims will be called a guide, but which may be viewed as a second or auxiliary guard movably mounted in relation to the chute structure, as by pivotally connecting the upward end of this positioning member on a pin 31 mounted in an upward extension of bracket 18 on which the main guard is alsopivotally mounted. The guide or positioning member is pressed yieldingly against the lower end 19 of the main guard; and the end 130 of said positioning member projects downward past the main guard sufficiently to overlap an upper segment of the outer face of a bobbin-head in proper initial stripping position between the stripper-blade and positioning assemblies 6, so as togive the bobbin the proper position in the direction of its length with respect to'the stripper blades. The guide 30 is normally yieldably held in this position, as by a spring 32 stretched between a bracket 33 connected to the guard'BO, and the bracket 22 on the side casting.

Adjustment of the downward extent and of the spaced relation of the main guard 15 and of the guide-member 30 with respect to the curved ed es of the chute is. provided by mounting their supporting bracket 18 movably on the chute side plate 2. For this purpose the apertures in the bracket receiving screws 16 are made larger than the diameter of the screw-shanks. Thus, as best shown in Fig. 7, the upper aperture 27 is substantially larger than the screw-shank. in lateral directions, and the lower aperture 28 is in the form of a vertically-directed slot. When the screws are loosened, the bracket may be moved in relation to the chute in horizontal and vertical directions and also pivotally about the lower screw-shank, such adjustment working in conjunction with the screw 23 to properly space the main guard from the head guide-rails 4 and to locate its end and the end of guide 30 in proper relation to the stripping blades and to the bobbin-head in initial stripping'position, in accordance with the design of bobbin to be stripped.

In every stripping action, as the bobbin is advanced lengthwise (by a push-head as in Patent 156 movements.

No. 1,749,128, or by pulling jaws as in Patent No. l/MGAZ'I) the head does not engage the end or the main guard 15, which is therefore not displaced from normal position; but the head engages the end 13s of the guide 30, which is displaced outwardly in an arcuate path, sufiiciently to permit the head to pass its end, and thereafter it s returned to normal position by action of its sp; i 32, ready to engage and position the head of the next bobbin, which drops into place from the feed chute as soon as the push-head returns to its starting position.

By thus avoiding any displacement of the main guard 15-, in the normal operation of the machine,

there is no tendency to cause or permit displace-- ment, er-lapping, etc, of the bobbin-heads in the chute above'initial strippi position, and no interlerence with the orderly movement of the bobbins downward in the chute, such as has been referred to in describing the normal operation of the structure Patent No. 1,740,128. If, however, a bobbin is improperly located, with its tip end in the socket of the push-head, and inclined outwardly upward, with its head in a position to 25' engage the main guard at any point above its lower end 19, the main guard is adapted to yield through extension of its spring when such a misplaced bobbin is advanced by action of the pool". -head, thus injury to the guard or bobbin is avoided by this permitted outward displacement of the main guard. As is obvious, the guide accompanies it outward.

An automatic stop mechanism may also be provided, operatively connecting the main guard and the d iving clutch of the machine (as disclosed in an application of William H. Trogdon, Ser. No. 524,914, filed on the twenty-iourth day of March, 1931,) to avoid discharging unstripped bobbins from the machine, as often results from advancing movement of such a misplaced bobbin, through stopping the machine after the guard moves outward a predetermined distance. When such a stop niecllanisni is employed, it may be aror adjusted to act positively upon any substantial or slight out ard movement of the main rd, it will be understood from. preceding e planatio: that this main guard has no m0vernent in the normal operation, but only moves outward by action upon it of an improperly posii tioncd bobbin. Reference is here made to such a stop mecr...enisrn only to show its adaptability to bobbin-guard or locating means of the present types, and it is not herein. claimed, since such stop mechanism per se is not of my invention.

it will now be understood by reference to Patent No. 1,749,127 that the present guide or bobbinlocating structure or arrangement may be employed therein. The member 15 here referred to theroain guard, corresponds to the guard dis l closed in. this patent, except that therein the guard is, in normal operation, in fixed position in relation to the feed chute and its lower end is located at such an elevation that it is not engaged by the bobbin-head in the normal stripping The guide or positioning member such as as herein is there mounted and associated with the feed chute and main guard member in a exactly similar to that shown in Figs. 1 and 2, and cooperates with the bobbin-head to position it in. relation to the stripping blade will be d laced by the bobbi -head in each stripping action, in which the bobbin moved by the pulling jaws engaging its h ad. The shutter device provided in the patent to locate the bobbin by cooperation with headand any positioning means between the pulling jaws, may be omitted, since proper positioning of the bobbin is sufficiently provided for by the present guiding and positioning member 36.

Fig. 3 shows a modified construction or arrangement of positioning means, which is also applicable to either type of machine, shown in the cited patents. The drawnigs shows particularly a machine of the character disclosed in E -tent No. 1,746,128, employing a push-head it for the first part of the stripping movement; but preceding and subsequent explanation will make it clear that this type of bobbin-head locating means may also be employed in the other type of machine.

The construction and arrangement are previously described, except for items later referred to in connection with bobbin-tip supporting means constituting a part of the present invention. The bobbin-head guard 150 associated with the feed chute is substantially as in the previous example; that is, its lower end 19 is located horizontally opposite the lower ends 5 of the head guide-rails i and in such position that it is not engaged by the bobbin-head in the stripping acticn; but in'accordance with the arrangement shown in the cited Patent No. 1,740,127, this guard, although adjustable, is in normal operation in fixed and unyielding position in rela-- tion to the feed chute. Thus, as shown in patent, and in present Fig. 3, it is supported brackets 40 connected to the guard having their ends overlying one of the chute side-cas ings 2, slots 41 through which screws 42 are passed and engaged in threaded holes he cast ing being provided to support the guard in noranally iixed but adjustable position.

To engage and properly locate the bobbin head in initial stripping position, a guide or end-piece a5 is movably mounted on the lower portion of the guard. As shown, this guide is pivotally connected to the guard at 46 and its lower end or tip 4'? extends below the lower end of the guard and slightly overlaps in a vertical direction the upper portion of the bobbin-head when at stri "sing level. The guide is yieldingly urged to normal oositicn, in engagement with the guard, as by g 48 having one end bearing on this positioning member and the other end connected to the guard, as by screws or rivets at 49. positioning member performs the ser as the guide 30 described, in continuing the guiding function of the main guard 15 or 15s after the bobbins have passed out of range of the lat" its ter, and positioning the bobbins endwise as they come to rest in stripping position so that the stripper blades will engage them at the proper point in their length.

When the bobbin is initially advanced in the stripping action, either by the push-head as particulariy shown in Fig. 3, or by pulling jaws as in the case of Patent No. 1,740,127, an upper segment of the outer face of the bobbin-head engages the tip end of the positioning or guidemember 45 and displaces it outward in arcin T ate path, sufiiciently to permit the be. bimhead to pass; this member 45 having capacity for in. dependent movement, the guard is not disturbed, and the bobbins are not disturbed and per blades and locating means associated therewith.

The whole guard structure comprising parts 150 and 45, 48, etc., in this form of the invention may, if desired, be pivotally mounted, as in the previous example of Figs. 1 and 2, and in that case will yield to prevent injury to the guard or bobbins in advancing movement of a misplaced bobbin, while the independently movable end piece or guide 45 will permit normal bobbin movements the stripping actions, without displacement of the whole guard. Such an arrangement is also applicable to the type of machine shown in Patout No. 1,740,128, including a push-head, which is here shown as i l in Fig. 3.

The invention also includes improved means for supporting the bobbin-tip just above its initial stripping position, these improvements being especially applicable to the type of machine disclosed in Patent No. l,7l'=,128. In that patent the tip is supported in the stated preliminary position by pivotally mounted jaws or fingers located at the lower end of a segmental rack which cooperates with the tips to retard their movement in relation to the heads moving on the arcuate head guide-rails. Figs. 3 and 4 show the improved tip-support in one form, as associated or combined with other parts of the feed chute structure. In this form, inner barrel-guide plates are secured to inner faces of the side uprights or castings 2. These have inwardly sloping or beveled faces 61 to receive the barrels, and their confronting vertical faces are spaced apart by adjustment of the guide members in relation to the castings, in accordance with the barrel diameter, allowing slight clearance. Tip-supporting members or arms 63 are pivotally mounted, as by hinge connections at 64, to the inner plates 3 above referred to. These members have diagonal or beveled faces 65 forming in effect continuations of the similar faces 61 of the barrelguide plates 50, and their lower ends are curved inward as at 66, so that the two inbent ends form a socket to receive and support the bobbintip just above the socket-formation 140 of the push-head 14. The supporting arms are yieldably held in their inward or normal positions, as shown in Fig. 4, by spring or weight means. Thus, as shown at the right in Fig. 4, either or both of the supporting members has connected to it a stem 67 projecting outward through an aperture 58 in the side-casting. A spring abutment in the form of a pocket provided with lugs 69 is secured to the outer face of the side-casting as by screws 70 passing through the lugs. This member has within its pocket formation 71 a helical. spring 72 placed about the stem 67 and compressed between the supporting member 63 and the outer end of the pocket. Inward movement of the supporting member laterally of the bobbins is adjusted and limited by a nut 73 on the threaded outer end of the stem. Otherwi e, as shown at the left in Fig. 4, either or both of the stems 67 of the supporting members maybe provided with a weight 75. adjustably mounted on the outward portion of the stem, and having a rounded inner end 77 engaging the side-casting at its aperture 68. When a bobbin-tip is supported in the socket consisting of the incurved fingers 66, its head rests on the head support provided by the stripper-blade assemblies 7, and the tip is then moved downward from the supporting socket by inward movement of a plunger 300 having a beveled inner face 301 to cooperate with the barrel, as here shown in Figs. 1, 2, 5

and 6, and as more fully explained in the above mentioned Patent No. 1,740,128. When the bobbin is so acted upon by the plunger to force its tip downward, the supporting members 63 yield outwardly, releasing the tip, which drops into the socket 140 of the push-head, in front of the pushing face 141 thereof, ready for advance in the stripping action; and the supporting members immediately move back to normal position by the action of their springs '72 or weights 75, ready to receive and support the tip of the next bobbin as the plunger 300 is withdrawn.

Figs. 3 and 4 also show instead of the tip-controlling segmental racl: of the stated patent, as above referred to, a tip-guide consisting of an arcuate drag-plate 80, the smooth curved outer face of which is engaged by the descending tip ends. This plate is supported on one of the lining-plates 3. The tips drag against the surface of this drag-plate and are thus retarded in relation to the movement of the heads, to provide for proper sliding movement of the heads or their rings on rails a, and proper positioning of the bobbins as a whole, in the feed chute.

Figs. 5 and 6 show another form of tip-support associated with arcuate barrel guide-strips 200, similar to those shown in Patent No. 1,740,128. These arcuate guides have inwardly projecting lugs 202 which are fixed to and supported on rods 203 which pass through holes in bosses 205 of the side-castings 2 and are secured in adjusted position as by set-screws 207 engaging the rods. The lower lug 202 of each of the guide strips is extended to form an arm 210 provided with a plurality of pairs of holes 212, the holes of each pair being arranged at an angle to the vertical, as indicated by the dot-and-dash lines 214, Fig. 5. Each pair of holes in one arm is located opposite a corresponding pair in the opposite arm 210. The yieldable tip-support consists of two opposite supporting members 220 of spring metal, each having its lower end inbent to provide a halfsocket formation 222, the two inbent or finger portions providing a socket to receive and yieldably support the tip. Each of these supporting members has near its upper ends holes arranged on the main axis of the member and spaced in accordance with the spacing of the pairs of holes 212 in arms 210, and is secured to one of the arms by screws 224 passing through the holes in the strip, and engaged in any selected pair of holes 212 of the arm, so that the two supporting members may be located, longitudinally of the machine, in accordance with bobbin length. The

mounting of the tip-support with such capacity for adjustment may be attained in other equivalent ways. The operation is substantially the same as in the preceding example. The tip drops into the socket provided by the inbent ingers of the two supporting strips, and then it is displaced therefrom by the action of the plunger and drops into the socket of the push-head, ready for axial advance of the bobbin in the stripping action. The supporting members 222 yield outwardly to permit passage of the tip and immediately spring back to normal position, to receive and support the tip of the next following bobbin.

In bobbin-feeding mechanism such as shown in Figs. 5 and 6, which has no tip-controlling means in the nature of a drag-plate, such as plate 80 in Figs. 3 and i herein, or a segmental rack as in Patent No. 1,740,128, the movement of the bobbin-tips through the chute is properly controlled by trip-pins 500 (Figs. 5 and 6) substantially as also shown and described in my psi shanks.

Patent No. 1,740,127; adjustable cover-plates 10, associated with the stripping-blade guide-blocks 7, are also preferably provided, of the character early abovev described with reference to Fig. 8, and as sufficiently indicated in Fig. 6, the stripping-blade assemblies being omitted in Fig. 5 for the sake ofclearness of illustration of other parts. The downward and inwardly-inclined edges of these cover-plates guide the bobbin to proper position as it leaves the chute, in relation to the stripping blades, and in cooperation with the tip of guide 30, as also more fully'explained in my companion application above mentioned, relating particularly to the adjustable coverplates.

Figs. 9 and 10 show additional improvements in tip-supporting structures or arrangements, consisting principally 'in means for movably and removably mounting the tip-supporting elements in the feed-chute, with ample capacity for adjustment. The tip-supports proper may be flexible strips 220, of the character described with reference to Figs. 5 and 6, but in this arrangement they are mounted independently of the barrel guides 200 and other parts. Thus, as shown, each supporting-strip 220 is secured to a carrier 510 of channel or inverted U-section, including inner and outer flanges 511 and 512 respectively, and a connecting or web-portion 513. Each carrier is mounted on one of the chute side-plates 2, which has an aperture 514 of a length permitting a desired range of adjustment longitudinally of the machine, and height sufficient to permit removal and replacement of the carrier with tip-supporting member 220 attached, without disturbing other parts. The outer flange 512 of the carrier has longitudinal slots 515, which may, as shown, be in vertically-offset relation, for the sake of lengthwise compactness, while allowing ample range of adjustment. Screws 516 passing through these slots secure the flange adjustably to the outer face of the side-plate. When. a vertical or angular adjustinent'of the carrier and tipsupport is desired, this may be obtained by making the slots, or certain of them, of a width considerably greater than the diameter of the screw- T'ne inner flange 511 of each carrier may have one or a plurality of pairs of screwholes 212, similar to tho'sedescribed with refer ence to Figs. 5 and 6, for the attachment of the tip-support in different positions lengthwise of the carrier, by screws 224, so that by selective positioning ofthe supports on the carriers, and lengthwise movement of the carriers on the sideplates, an ample range of adjustment is provided in small space, to position the tip-supports properly for bobbins of various lengths, and these adjustments may be made without disturbing the adjustments of any other parts. The carriers may be removed from the chute structure at any time, to permit inspection, repositioning or replacement of the tip-supports, or for other reasons, also without displacement or interference with other parts, by removing screws 516 and tilting the carriers outwardly, and may be quickly and easily replaced and readjusted in an obvious way.

What I claim is:-

1. A bobbin-stripper having in combination an arcuate feed-chute in which the bobbins travel suspended by their heads and with their axes always in a vertical plane, stripping means to operate on a bobbin while disposed in such plane, an operatively movable guard causing the bobbin heads to follow the arcuate chute, and a swinging guide also in such plane movable independently of the guard to position the bobbins endwise when in stripping position.

2. A bobbin-stripper having in combination stripping devices, a feed-chute, operatively movable bobbin-head guiding means terminating their control of the bobbins short of the stripping position, and means independent of such guiding means to position the bobbin endwise when in stripping position and'yieldable under the action of a bobbin during the stripping action.

3. A bobbin-stripper having in combination stripping means, an arcuate feed-chute in which the bobbins travel in a vertical plane, a bobbinhead guard in spaced relation to the arcuate chute, and a pivoted member extending below the guard, spring-pressed toward the chute and held in spaced relation to the chute through engagement with the guard, and serving to position the bobbin with respect to the stripping means after leaving the control of the guard.

4. A bobbin-stripper having in combination stripping means, an arcuate feed-chute in which the bobbins travel in a vertical plane, a guard for directing bobbins along the chute toward the stripping means, and a positioning member movably mounted on the guard in such vertical plane and adapted to direct bobbins therefrom to the stripping means.

5. A bobbin-stripper having in combination stripping means, an arcuate feed-chute in which the bobbins travel in a vertical plane, a main guard for directing bobbins along the chute toward the stripping means, and an auxiliary guard movably mounted on the chute superposed over the main guard, extending beyond the main guard and adapted to direct bobbins therefrom to the stripping means.

6. A bobbin-stripper having in combination stripping means, a feed-chute, a main guard for directing bobbins along the chute toward the stripping means through engagement with the bobbin heads, and an auxiliary guard movably mounted on the chute separately from the main guard, extending beyond the main guard and adapted to direct bobbins to and from the stripping means.

7. In a bobbin-stripper of the character described, in combination, a feed-chute, stripping means, means for advancing a bobbin in a stripping action, a pivoted and yieldable guard overlying bobbin-heads in the feed-chute, and a yieldable bobbin-head guide cooperating with a bobbinhead adjacent the delivery end of the feed-chute and subsequent to the action of the guard to 'Li position the bobbin in relation to the stripping means, arranged to be displaced by advance of the bobbin in the stripping action.

8. A bobbin-stripping machine comprising stripping means, means for advancing a bobbin axially in relation to the stripping means for stripping, a feed-chute, a guard strip movably mounted on the chute overlying bobbin-heads supported thereon, adapted to be displaced by an incorrectly positioned bobbin and having its end located to avoid contact by correctly positionedbobbin-heacls in a normal stripping movement, and an auxiliary head-guiding and positioning member movably mounted in relation to the chute led and guard strip and extending beyond the end thereof to direct bobbin-heads therefrom to stripping position, said positioning member having its end overlapping the head in such position and being outwardly displaced by the head in the stripping movement.

9. A bobbin-stripping machine comprising stripping means, means for advancing a bobbin axially in relation to the stripping means in the stripping action, a feed-chute, a guard strip movably mounted on the chute overlying bobbin-heads supported thereon, and a pivotally mounted auxiliary guard and positioning member overlying the guard strip and extending beyond the end of the latter to direct bobbin-heads therefrom to stripping position.

10. A bobbin-stripping machine comprising stripping means, means for advancing a bobbin axially in relation to the stripping means for stripping, a feed-chute, a guard strip yieldingly mounted on the chute and overlying bobbin-heads supported thereon, and an auxiliary guard and positioning member pivotally mounted on the guard strip and extending beyond the latter to position the bobbins endwise when in stripping position.

11. A bobbin-stripping machine comprising stripping means, a feed-chute, an operatively movable guard directing bobbin-heads in the chute to a point near the stripping means, and an independently movable guide directing bobbins from the guard to the stripping means.

12. A bobbin-stripping machine comprising stripping means, a feed chute, an operatively movable guard directing bobbin-heads in the chute to a point near the stripping means, and a guide supported on the chute, movable independently of the guard and arranged to direct bobbin-heads therefrom to the stripping means.

13. A bobbin-stripping machine comprising stripping means, a feed-chute, a movable guard directing bobbin-heads in the chute to a point near the stripping means, and a guide supported on the guard, movable independently thereof and arranged to direct bobbin-heads from the guard to the stripping means.

14. In a bobbin-stripper of the character described, the combination with a feed-chute structure comprising spaced side-members and stripping means, of bobbin-tip supporting means comprising opposed barrel-guiding members mounted on said chute side-members and having formations mutually providing a tip socket.

3.5. In a bobbin-stripper of the character described, the combination with a feed-chute structure comprising spaced side-members, and s ripping means, of bobbin-tip supporting means comprising opposed barrel-guiding members mounted on said chute side-members and having formations mutually providing a tip socket and adapted to yield outwardly to release the tip when the bobbin is urged downward.

16, A bobbin-stripper of the character described having in combination a feed-chute Q m sts structure comprising spaced side-members, generally arcuate bobbin-barrel guide-rails supported at inner faces of said chute side-members, and yieldable bobbin-supporting clips secured to portions of said guide-rails.

17. A bobbin-stripper of the character described having in combination a feed-chute structure'ineluding spaced side-members, bobbin tip-supporting spring strips having inbent ends providing a yieldable tip socket, and means for supporting said spring strips in different positions on said side-members in accordance with the dimensions of the bobbin.

18. In a bobbin-stripper, in combination, a feed-chute having spaced side-members, stripping means, and bobbin tip-supporting members having end-portions inbent to engage and yieldably support a bobbin-tip above initial stripping position, such members being supported adjacent inner faces of the chute side-members.

19. In a bobbin-stripper, in combination, a feed-chute having spaced side-members, stripping means, bobbin-barrel guiding members having end portions inbent to engage and yieldably support a bobbin-tip above initial stripping position, and means adapted to engage a bobbin and move its tip from said supporting members to initial stripping position.

20. A bobbin-stripper comprising stripping means, a feed-chute, a guard and a movable guide directing bobbins from the guard toward the stripping means, and means for adjustably regulating the position of the guide in relation to the guard and the chute.

21. In a bobbin-stripping machine of the general character described, in combination with a feed-chute, a tip-support adapted to displaceably hold a bobbin-tip adjacent stripping position, and means securing the tip-support movably on, the chute for adjustment longitudinally 5 thereof.

22. In a bobbin-stripping machine of the general character described, in combination with a feed-chute having a side wall, a carrier independently adjustably mounted thereon, and a tip-support on the. carrier within the chute and adapted to, yieldably engage a bobbin-tip adjacent stripping position.

23. In a bobbin-stripping machine of the general character described, in combination with a 25 feed-chute, including a side wall having an aperture, a tip-support carrier removably mounted on the sidewall and extending through said aperture into the chute interior, and a yieldable bobbin-tip-support movably secured on the car- 3 rier within the chute.

EDGAR A. TERRELL. 

